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OverLord2011 [107]
3 years ago
13

6. Solve by Elimination: 4x + y = 7 3x - y = 0

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
8 0
X=1, y=3 see attached photo for steps

Ivan3 years ago
4 0

Answer:

{x,y} = {1,-4}  

Step-by-step explanation:

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Can someone please explain how to solve such a mean and sneaky problem? Please?
Lelu [443]

Answer:

all real numbers

Step-by-step explanation:

simplify each side of the inequality

26 + 6b -- already fully simplified

2(3b + 4) → 6b + 8

26 + 6b ≥ 6b + 8

subtract 6b from both sides

26 ≥ 8

since this expression is true (26 is greater than 8), then the solution is all real numbers. any value could take the place of b because in the end, it will be canceled out by itself, resulting in 26 ≥ 8

4 0
3 years ago
Since stores will calculate the total price of your purchase for yo, why is it important to be able to calculate discounts yours
denpristay [2]

Answer:

So you don't overspend.

Step-by-step explanation:

Lets say you bring $10 and everything at the store is half off the price is half of its original (huge savings) and you buy a toy that was $12 and now its $6, if you calculate your own saving you know you have $4 left to spend.


Hope this helps!


7 0
3 years ago
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Estimate the square root of 24 to the nearest hundredth
fenix001 [56]

9514 1404 393

Answer:

  √24 ≈ 4.90

Step-by-step explanation:

The square root can be estimated using a linear interpolation between the perfect squares on either side of the number of interest.

  4² = 16

  5² = 25

So, √24 can be estimated to be ...

  (24 -16)/(25 -16) +4 = 8/9 +4 = 44/9 ≈ 4.8888...

This estimate can be refined by doing one iteration of the Babylonian method. That averages the current guess with the value obtained by dividing 24 by that guess.

  √24 ≈ (44/9 +24(9/44))/2 = 4 89/99 ≈ 4.898989...

  √24 ≈ 4.90

_____

A calculator gives the root as approximately 4.89897948557. Rounded to hundredths, that is 4.90.

3 0
3 years ago
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soldier1979 [14.2K]
Daniel would be at the point 1,0
6 0
3 years ago
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Find the coordinate of the point where the line 2x + y = 5 cuts the x-axis.​
ki77a [65]

Step-by-step explanation:

Any point on the x-axis will have y = 0.

When y = 0, 2x + (0) = 5, 2x = 5, x = 2.5.

Hence the point is (2.5,0).

3 0
3 years ago
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